I agree that one should never beg for upvotes or follows on the comment section of posts here. I do however think the postpromotion channel on steem.chat can be pretty useful for new users, but just post it there, don't beg. I see some new users get a few dollars worth of upvotes, which could really be motivational to them ;) So in my opinion, there's a right place and time for everything, but the comment section is not one of these.
Anyway, great post! I hope this will make some of these comment spammers think twice before begging again ;)
I myself promote my posts in the chatroom so I agree with you. There's a time and place for everything! Going around and posting comments on people's posts and begging for upvotes/follows is definitely not the way! :]